Asked by Sindy
I'm really struggling with word problems right now. Got through 20 just three left. Can someone please give me some pointers or the first few steps?
1. A sum of money is divided between A, B and C in the ratio 1 : 2 : 3. However, before the
money is divided C dies and it is decided to divide his share between A and B in the
ratio 1 : 3. If After C’s share is divided B has $2000 more than A, how much money was
there altogether?
2. Rectangles A and B are both four times as long as they are wide and the length of
rectangle A is three times the length of rectangle B. If the difference in the perimeters
is 16 cm, find the dimensions of each rectangle.
3. A certain journey took 40 min to complete.
If half the distance was travelled at an average
speed of 100 km/h and the other half at an
average speed of 60 km/h, what was the
length of the journey?
1. A sum of money is divided between A, B and C in the ratio 1 : 2 : 3. However, before the
money is divided C dies and it is decided to divide his share between A and B in the
ratio 1 : 3. If After C’s share is divided B has $2000 more than A, how much money was
there altogether?
2. Rectangles A and B are both four times as long as they are wide and the length of
rectangle A is three times the length of rectangle B. If the difference in the perimeters
is 16 cm, find the dimensions of each rectangle.
3. A certain journey took 40 min to complete.
If half the distance was travelled at an average
speed of 100 km/h and the other half at an
average speed of 60 km/h, what was the
length of the journey?
Answers
Answered by
Reiny
1. original amounst
A = x, B = 2x, C = 3x
After the death,
A has x + (1/4)(3x) = 7x/4
B has 2x + (3/4)(3x) = 17x/4
B-A = 2000
17x/4 - 7x/4 = 2000
17x - 7x = 8000
10x = 8000
x = 800
take it from there
2. Start with the smallest rectangle
small-width = x
small-length = 4x
large-width = 3x
large-length = 12x
large per = 30x
small per = 10x
Can you finish it?
3. let the length of the journey be 2x
so x/100 + x/60 = 40/60
its all yours .....
A = x, B = 2x, C = 3x
After the death,
A has x + (1/4)(3x) = 7x/4
B has 2x + (3/4)(3x) = 17x/4
B-A = 2000
17x/4 - 7x/4 = 2000
17x - 7x = 8000
10x = 8000
x = 800
take it from there
2. Start with the smallest rectangle
small-width = x
small-length = 4x
large-width = 3x
large-length = 12x
large per = 30x
small per = 10x
Can you finish it?
3. let the length of the journey be 2x
so x/100 + x/60 = 40/60
its all yours .....
There are no AI answers yet. The ability to request AI answers is coming soon!